Knights Armament Co.s URX 3.1 3″ Seven Slot Picatinny Rail Section attaches directly to a URX III or 3.1 modular handguard via a hex head screw. It allows the user to install any number of tactical accessories to the forend if desired. Installation hardware included. The 30412-BLK is a lightweight polymer.
- ,Seven slot, 8 rib Picatinny rail section,
- Lightweight polymer